You can call it whatever you want. The fact is that the guy has missed a ton of time over the course of 8 seasons. To put it in perspective, Noah Hanifin was drafted the same year and has played 554 games, which is the most among 2015 draftees. Hanifin has missed a few games here and there due to injury, but has been generally healthy. Eichel has had the opportunity to play at least that many games, but has only played 436 games. In other words, he has missed at least 118 games compared to a healthy player, or roughly 1.5 full seasons so far. Or, if you prefer, he has missed 21.3% of games compared to Hanifin. Maybe it's bad luck, but it definitely impacts his value to his team.